fix: correct ELAI render URL and split long scripts into multiple slides

Made-with: Cursor

custom_addons/encoach_ai/services/elai_service.py

@@ -72,9 +72,36 @@ class ElaiService:
         resp.raise_for_status()
         return resp.json()
 
+    @staticmethod
+    def _split_script(script, max_chars=500):
+        """Split a long script into chunks that stay under ELAI's 60s/slide limit.
+
+        Uses ~10 chars/second heuristic, so 500 chars ~ 50s (with safety margin).
+        Splits on sentence boundaries ('. ', '? ', '! ', newlines).
+        """
+        if len(script) <= max_chars:
+            return [script]
+        import re
+        sentences = re.split(r'(?<=[.!?])\s+|\n+', script)
+        chunks, current = [], ""
+        for sent in sentences:
+            if not sent.strip():
+                continue
+            if current and len(current) + len(sent) + 1 > max_chars:
+                chunks.append(current.strip())
+                current = sent
+            else:
+                current = f"{current} {sent}" if current else sent
+        if current.strip():
+            chunks.append(current.strip())
+        return chunks or [script]
+
     def create_video(self, script, *, avatar_id=None, title="EnCoach Video", language="en"):
         """Create an avatar video from a script.
 
+        Automatically splits long scripts into multiple slides to stay under
+        ELAI's 60-second-per-slide limit.
+
         Returns:
             dict with 'video_id', 'status'
         """
@@ -85,12 +112,12 @@ class ElaiService:
         avatar_code = avatar_preset["code"]
         avatar_src = f"https://elai-avatars.s3.us-east-2.amazonaws.com/common/{avatar_code.replace('.', '/')}/{avatar_code.replace('.', '_')}.png"
 
-        payload = {
+        chunks = self._split_script(script)
-            "name": title,
+        slides = []
-            "slides": [
+        for idx, chunk in enumerate(chunks, 1):
-                {
+            slides.append({
-                    "id": 1,
+                "id": idx,
-                    "speech": script,
+                "speech": chunk,
                 "language": "English",
                 "voice": avatar_preset["voice"],
                 "voiceType": "text",
@@ -116,8 +143,12 @@ class ElaiService:
                         }
                     ],
                 },
-                }
+            })
-            ],
+        _logger.info("ELAI: creating video with %d slide(s) from %d chars", len(slides), len(script))
+
+        payload = {
+            "name": title,
+            "slides": slides,
             "tags": ["encoach"],
         }
         t0 = time.time()
@@ -135,7 +166,7 @@ class ElaiService:
             # Step 2: trigger rendering -- ELAI requires a separate render call
             try:
                 render_resp = _requests.post(
-                    f"{ELAI_BASE}/videos/{video_id}/render",
+                    f"{ELAI_BASE}/videos/render/{video_id}",
                     headers=self._headers(),
                     timeout=30,
                 )